IB Biology SL B3.2.6 Coronary Artery Occlusion Questions

Explore how endothelial damage, atherosclerotic plaque and plaque-triggered thrombosis restrict coronary blood flow and can cause myocardial infarction in IB Biology SL B3.2.6.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Trace how damaged coronary endothelium and lipid-rich atherosclerotic plaque narrow the artery and restrict coronary blood flow.
  • Explain how plaque rupture exposes a thrombogenic surface, causing a thrombus that can occlude a coronary artery.
  • Relate coronary occlusion to reduced oxygen delivery, cardiac-muscle death and myocardial infarction.

IB Biology SL B3.2.6 Coronary Artery Occlusion Questions question 1

[Maximum number: 2]

Outline the causes and consequences of blood clot formation in coronary arteries.

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